The Case IH 51585566 is a genuine OEM ball bearing designed for various agricultural machinery, including Case IH combines, cotton pickers, forage harvesters, hay & forage equipment, and windrowers. This essential component ensures smooth rotational movement and reduces friction, contributing to the longevity and efficient performance of your equipment. With an inner diameter of 17 mm, an outer diameter of 40 mm, and a width of 12 mm, it is a direct replacement part for maintaining optimal machine functionality.